Halifax Tunnels

So there's been recent talk on a forum I'm with about the downtown Halifax tunnels.

Seeing these new threads have rekindled my interest in finding access to these hidden tunnels. We know already that there are more than one tunnel. One main tunnel running from Fort George to the Halifax Dockyards along George Street, with possible access all along here. Then there are others that were found throughout the years at Grafton/Prince Streets, Granville/Duke Streets, and Market/Duke Streets. With the slim possibility of tunnels from Fort George to the Halifax Armoury and from the Halifax Dockyard to Georges Island (Fort Charlotte).

The main tunnel under George St. has been confirmed to run right under the Parade Square near town hall, with a possibility of access from under the square itself, as there's a storage space. Also a possibility of access from the basement of town hall.

I figure I won't try and gain access until I know more about where there might be possible entrances, namely until spring.

The Rehab

Built in 1928 used until 2002, the Halifax County Regional Rehabilitation Centre was a county hospital, asylum for the mentally insane, and a rehabilitation centre. The place is also said to be haunted by former residents and patients from throughout the building's history. It has come to be called "The Rehab" by residents in the area.
Here are some photos:

A night in Lawrencetown

Ok, so when I was about 12 or 13 years old when this happened.
I was staying at my cousin's place for the weekend, and we were chilling down at the ball field behind the school. I looked up into the sky to watch the stars and whatnot, but out of the corner of my eye, I saw some strange looking lights just above the treeline to my right. When I looked over towards the lights, I realized that they weren't any more than 200 metres into the woods, hovering just above the top of the trees. These lights were orange in colour and and in a "V" shape. When I pointed them out to my cousin, he said that he hadn't seen anything like it before.
There were seven lights total, one in the middle, and three on either side of the middle one. Each light I'd say was about 8 feet in diametre, and spaced about 6 feet apart from each other. I could just barely make out a triangular shape as my eyes adjusted to the difference in light in the area. But the weirdest part was the fact that there was no light actually being projected away from the object. Meaning that it didn't cast any shadows, almost as if it weren't actually there. But it was making a very low humming or buzzing noise.
The object was hovering there for about 15 to 20 minutes before the lights changed colour to red and it shot straight up into the sky faster than anything I'd ever seen before.
This is the first time letting anybody know about this incident, if anybody doesn't believe me, that's ok, because I don't care about being judged, I know what I saw.